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1240006261891

Optical Instrument Lens

Model / MPN: 1240006261891 | NSN: 6650-00-626-1891

An unmounted, transparent, color free lens which may be treated with a low reflection coating to increase light transmission. Includes single and compound elements. For items having two plane parallel surfaces, see window, optical instrument. Excludes reticle, optical instrument.

Product Details

NATO Stock Number

6650-00-626-1891

Sold in multiples of

1 EA

DEMIL

DEMIL/MLI

Diameter

1.650 inches

Axial Thickness

0.100 inches and 0.610 inches

Compound Lensaxial Thickness

0.710 inches

Compound Lens Edge Thickness

0.531 inches

Equivalent Focal Length

6.532 inches

Back Focal Length

7.274 inches

Refraction Index

1.6490 and 1.6200

Abbe Constant

33.800 and 60.300

Compound Lens Style

Doublet

Individual Lens Style

Double concave and double convex

Element Left Surface Radius

2.656 inches

Element Right Surface Radius

1.663 inches

Material

Glass, optical, mil-g-174, class 1, grade c

Material

Glass optical

Material Specification

Mil-g-174, class 1, grade c military specification single material response

Fsc Application Data

Periscope, integrated with fire control equipment

12400 Series Parts

Pricing and Availability

Send us a request for quote using the form below. Our team will contact you with an up to date pricing and availability quote ASAP.

Certified Quality Assurance

ISO 9001:2015 + AS9120B
Counterfeit Parts Prevention
100% Product Inspections
7 Year Record Retention
On Time Delivery
HAZMAT Certified
Worldwide Shipping

1240006261891 Cross Reference

8289260